JP2 Encoding

You can use the java JJ2000 encoder or the the C-based Jasper encoder to create image data for pTolemy3D. However, the simplest way to do this is to use ptconsole app, available here.

The attached JJ2000 jar file has been modified to read png files.

Generally speaking, the encoding parameters are meant to output simple jpeg 2000 files with a 4 internal levels. Normally use 24bit PNG files generated from WMS server from source TIFs provide the best output. Using jpegs as input is generally a bad idea.

Commandline Example:

jasper.exe --verbose -f 00x0y0.png -F 00x0y0.jp2 --output-option rate=0.03 --output-option numrlvls=4 --output-option tilewidth=1024 --output-option tileheight=1024 --output-option prg=rlcp

you can get exe file here (win32 only)

Commandline Example:

java -classpath jj2000-5.1-mod.jar JJ2KEncoder -i 00x0y0.png -o 00x0y0.jp2 -tiles 1024 1024 -pph_tile on -rate 0.8 -Alayers 0.9 +1 -Qtype reversible -Wlev 3 -debug

you can get jar file here

In order to visually check data you can use a variety of jp2 capable viewers but the OPJViewer JPEG 2000 viewer will give show you detailed information on the internal structure of the jp2 file.